Dirty oil,noisy engeine, accord 2.4 2007

[kamiljanikjoul]

Hi everyone

Does anyone knows why my accord 7 2.4 from 2007 have very dirty oil even after 8 months after oil change and engeine is much louder than after oil change??
i hava car for 7 years and changing oil regulary doing like 2000miles a year. oil is shel helix ultra profesional AF 5W30.
oil is very dark brown colour, looks bad to me.


Any ideas,recomendtion ,maybe engeine flush or something??
thanks

 

[Grayedout]

Dark oil is good thing as it means it is holding all the impurities from the engine so they will be removed when drained. It's what it is designed to do

 

[Richard B]

Do the basics first. You should check a few engine vital signs, like the colour of each of the spark plugs and the compression on each cylinder. If one of the cylinders deviates from the others, you might have a malfunctioning hydraulic valve tappet on that cylinder.

 

[kamiljanikjoul]

Thanks for answering, I changed oil to different brand and thicker viscosity. I started to use liqui moly molygen 5W40 with archoil 9100...

Engine works smooth and more quiet, oil after 4months is better colour.it is bit dirty but not that bad.

I am thinking to change spark plugs. Is it easy to replace them for mechanic ? I mean will they release witout any problems ?

 

[F6HAD]

Yes very easy on this engine. Use genuine Honda plugs

 

[kamiljanikjoul]

Thanks, I'll try to order them.
Accord getting old (18 years)...
So Many thing need changing

 

[kamiljanikjoul]

Genuine Honda Accord 2.4 Petrol Spark Plug Set 2003-2008 (Set of 4) (9807B5617W) - Cox Motor Parts

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Is this once should be OK Fahad ?
My one is accord 7 2.4 auto from 2007 ... They saying its oreginal Honda parts